Dry shaver



May 23, 1950 c. E. GRAVES DRY SHAVER 2 Sheets-Sheet 1 Filed Feb. 15, 1946 m M a mu 0 w e e m n w 7 1 r m H uf 6 K "1 m 6 w a 6 H 1 a ,7 4/ 7 /1| I 6 0 I 1 v I///////// /IIIIIIIIIJ I I I 6 r w a 6 1 I liq l l l \ll 6 k- 1 w 2 C. E. GRAVES May 23, 1950 DRY SHAVER 2 Sheets-Sheet 2 Filed Feb. 15, 1946 INVENTOR. Grams firro N Y Patented May 23, 1950 UNITED STATES PATENT OFFICE 3 Claims.

This invention relates to power-operated hair clipping or shaving devices, and has for its general object to provide a simple, practical device of this kind having a comparatively narrow, rounded nose whereby it is especially adapted for clipping or shaving at difficultly accessible locations as, for example, under the arms and in corners between different parts of the anatomy.

More particularly, an object of the invention is to provide a device of the kind mentioned embodying a clipping element, or elements, in the form of a wheel, or wheels, and novel driving means between the same and an electric motor or other source of power housed within the device.

Another object of the invention is to provide a clipping wheel having pivotal cutting elements and spring means tending constantly to swing the same outwardly relative to the wheel to maintain them in cutting contact with the inner face of the slotted nose of the device.

With the foregoing and other objects in view, which will become more fully apparent as the nature of the invention is better understood, the same consists in a hair clipping or shaving device embodying the novel features of construction, combination and arrangement of parts as will be hereinafter more fully described, illustrated in the accompanying drawings and defined in the appended claims.

In the accompanying drawings, wherein like characters of reference denote corresponding parts in the different views:

Figure 1 is a central, longitudinal section through a hair clipping or shaving device, constructed in accordance with one practical embodiment of the invention.

Figure 2 is a section through the device at right angles to Figure 1.

Figure 3 is a view similar to Figure 2 illustrating an alternative form of the device; and

Figure 4 is a fragmentary side elevation of a cutting wheel having pivoted spring-pressed cutting elements.

Figure 5 is a side view of my improved dry shaver shown in Figure 3.

Figure 6 is a view similar to Figure 3, showing the dry shaver equipped with double cutting wheels and in which the cutting elements are spring pressed, to engage and form cutting engagement with the nose piece of the shaver.

Referring to the drawings in detail, first with particular reference to the form of the invention illustrated in Figures 1 and 2, A designates, generally the body of the device which may be molded or otherwise formed from plastic or other suitable material, and which is hollow to contain an electric motor designated generally as B.

The body A may be formed of interfitting, separable parts I0 and II to permit convenient mounting of the motor B and the cutting mechanism therein and at the rear end of the device there may be suitable terminals I2 for electrically connecting the motor B to a source of current through the instrumentality of an extension cord.

The front end of the housing A has a nosepiece I3 of thin, sheet metal suitably mounted thereon and, in accordance with the invention, the front end portion of this nose-piece is rounded both in side elevation and in transverse section. Moreover, the said front end portion of said nose-piece is provided with numerous narrow slots I4 extending crosswise thereof for the admission thereto of hairs to be clipped.

Extending from the motor B into the nosepiece I3 are bearing elements I 5 in which is journaled a shaft I6 which extends transversely relative to said nose-piece and the axis of which is coincident with the center of the side elevational curvature of the front end portion of said nosepiece. On said shaft is fixed a cutting wheel I1 having peripheral cutting elements or knives I8 the outer end portions of which conform in cur vature to and engage the inner face of the transversely rounded slotted outer end portion of the nose-piece I3. Accordingly, rotation of said wheel is effective to clip any hairs which extend through the slots I4 into the nose-piece. In this connection it will be observed that the front end portion of said nose-piece is relatively thin to adapt it for use in corners and other difiicultly accessible portions of the face and other parts of the anatomy.

On the shaft I6 is mounted a beveled gear I9, while on a shaft 20 driven by the motor B and which may be journaled in one of the bearing elements I5 is mounted a bevel gear 2| which is disposed in mesh with said bevel gear I9. Accordingly, rotation of the shaft 20 is effective to rotate the shaft I6 and thereby rotate the cutting wheel I"! to cause its cutting elements or knives I8 to cooperate with the inner face of the front end portion of the nose-piece I3 to clip any hairs which may project through the slots I4 into said nose-piece.

In the use of the device, the motor B is started by closing of a suitable switch and the front end portion of the nose-piece I3 is placed against and moved over the surface from which hairs are to be clipped or shaved, the hairs entering the wardly and inwardly relative to each other and each cooperates with a related half-portion 10f They are the front end of the nose-piece 13. mounted on shafts i 6', it which are mounted, in

turn, in a bearing element I5 extending into the nose-piece from the motor B and they carry crown gears HQ with which meshes a bevel gear 2| on a shaft 20 which is driven by said motor and which may be journaled; for example; in the bearing element l5.

Rotation of the motor-driven shaft 28' obviously'is effective to'rotate the cutting wheels 11', 11" in opposite directions to cause their knives I8 to cooperate most effectively with the inner faceof the front end portion of the nosepiece '13" to clip hairs which extend into said portion through the slots 54 therein. 7

According to either vform of the invention the cutting elements or knives may be pivoted to the cutting wheel by which they are carried and any suitable spring means may be provided to swing them outwardly so that they maintain operative contact with the inner-face of the slotted front end portion of the nose-piece. Figure A illustrates such a construction, using a single cutting wheel. The cutting elements or knives 28a are pivoted to the cutting'wheel Ha as in: dicated at 22 on axes parallel to the axis of rotation of said-cutting wheel, and spiral spring 23 is interposed between each of thesarne and the cutting wheel. 'Said springs tend constantly to swing said cutting elements outwardly relative to the cutting wheel and thus operate to maintain the free ends of said elements or knives pressed against the inner face of the front end portion of the nose-piece for most effective cutting cooperation therewith. Figure 6 shows double cutting wheels !l having spring biased cutting ele:

ments or knives 'I8 which elements or knives are spring biased by the-spiral springs 23*, so that v out, however, that While only certain specific structural forms of the invention have been illustrated and described, the same is readily capable of embodiment in specifically different structural forms within its spirit and scope as defined in the appended claims.

I claim:

1. A hair clipping or shaving device comprising a body having a nose-piece of thin sheet metal, the frontend portion ofwhich is rounded both in side elevation and in transverse section and is provided with transverse hair-admitting slots, a pair of rotatable cutting wheels within said-body disposed in forwardly and inwardly inclined relationship to each other, cutting elements carried by said wheels for cooperation with related portions of :the inner face of the front 7 end portion of said nose-piece, and a motor carsaid-springs tend constantly to swingsaid cut- 7 ting elements outwardly relative to the cutting wheels I and thus operate to maintain the free ends of said elements or knives pressed against the inner face of the front end of the nose piece for most effective cuttingcooperation therewitn 7 its advantages appreciated; It is :desired to point ried by said body and'having a driving connection with said wheels. 7 v p i 2. Arhair clipping or shaving device comprising a bodyhaving a nose-piece of thin sheet metal, the front end'portion of which is rounded both in side elevation andin transverse section and is provided with transverse hair-admitting slots, a pair of rotatable cutting wheels within said body disposed in forwardly and inwardly inclined relationship to each otherpcuttin elemerits carried by said wheels'for cooperation with related portions of the inner face of the front end portion of said nosepiece, a motor housedin said body, a bearing element extending fromsaid *motonshafts carried by said bearing element and upon which said wheels are mounted forrotation, a crown gear carried by eachwheel and a motordriven shaft journaled in said bearingmember and having a bevel gearmeshing with said crown gears, thereby establishing a drivingconnection between said motor and said wheels.

3. A ihair clipping or shaving device as set forth in claim 1 in which the cuttingelements are pivoted to thecutting wheels and in which spring means tend constantly toswing saidcutting elements to maintain them operatively engaged with the inner face of the front end portion of the nose-piece.

CLARE E. GRAVES.

V file of this patent:

UNITED STATES PATENTS Number V 7 Name 'Date 2,161,981 Ruskin r June 13, 1939 I 2,178,976 'le Pas i Nov. 7,1939 2,289,323 Dettle July 67, 1942 2 3 5,214 RandJr, --c-.--v-i- M -T3Q,1l943 FOREIGN PATENTS Number Country Date 

